Isdn Communications, Answering a V.110 Call | NETGEAR XM128 ISDN

Reference Guide for the Model XM128 ISDN Digital Modem

V.110 ISDN Communications

This section describes how to set up and configure your Model XM128 modem with the V.110 Protocol.

Answering a V.110 Call

After you set the proper V.110 communication mode, there is no need to configure the ISDN mode to the protocol of an incoming call. If the device is set to auto-answer, the Model XM128 modem determines the correct protocol to use by examining the data coming in from the remote site.

Otherwise, this determination takes place after an answering command is issued.

One exception to this process is when the ISDN data call is carried through speech bearer. In this case, you need to make an MSN entry for the phone number from which you are expecting the data-over-speech-bearer call to be coming for X.75 protocol. Use AT&ZI1=n. Refer to “Data over Speech Channel” on page 6-7 for details.

To allow the Model XM128 modem to answer the incoming call, you need to set S0 to a value greater than 0 (in other words. ATS0=1). The Model XM128 modem answers the call and uses asynchronous to synchronous conversions to and from the DTE. If S0 is not set (S0=0), the DCE reports RING and also makes an audible ring notification.

Making a V.110 Call

Before an ATDIxxx command is issued to dial out, make sure that your Model XM128 modem is in the asynchronous mode (AT&M0). Use the commands in Table 6-6 to configure V.110 ISDN communication.

Table 6-6.	V.110 configuration commands

AT Command		Description

ATB10		User rate follows DTE speed

ATB13		User rate = 2400bps

ATB14		User rate = 4800bps

ATB15		User rate = 9600bps

ATB16		User rate = 14400bps

ATB17		User rate = 19200bps

ATB18		User rate = 38.4 Kbps

ATB19		User rate = 57.6 Kbps (Japanese version only)


6-10			ISDN Overview

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NETGEAR XM128 ISDN manual Isdn Communications, Answering a V.110 Call, Making a V.110 Call, Configuration commands

Contents

NETGEAR, Inc USA Statement of Conditions TrademarksEN 55 022 Declaration of Conformance VCCI-2 Statement Bestätigung des Herstellers/ImporteursCertificate of the Manufacturer/Importer Customer Support Bulletin Board Service World Wide Web Contents Reference Guide for the Model XM128 Isdn Digital Modem Error Correction and Data Compression with Chapter Advanced Isdn Appendix a Technical Specifications Appendix E Connector Pin Assignments Figures Xii Tables Tables Xiii 10-1 Table F-1 Xvi Tables Preface Purpose Special Message Formats ConventionsUse of Enter, Type, and Press Related Publication Manual contentsOther Conventions Manuals DSU Features Chapter Introduction Reference Guide for the Model XM128 Isdn Digital Modem Interface Options Front PanelInterface options Label Color Activity Description LED descriptionsPWR RTS DTRDSR CTS Rear Panel Rear panel of the Model XM128 modem with S interface Label Description PowerRear panel components ON/OFFPage Chapter Installation Package Contents Installing the Modem Model XM128 modem connections Verifying Hardware Installation Page Setup for Windows 95 and Windows NT Selecting the Appropriate Windows 95 Driver INF file Click on Close Configuring Your Isdn Line and Network Chapter ConfigurationConfiguring Your Modem Using a Terminal Program Operating system Program Understanding AT CommandsTerminal programs Unix Supported AT command types Quick Tips for Issuing AT CommandsType of AT command Example Result codes commands Communication Speed SetupUsing AT Commands to Verify Modem Response Command Description Switch Type Setup for North America Switches supported by the Model XM128 modem Spid Setup for North America Type ATSPIDO=n and Enter Setup for Europe and the United Kingdom Entering DNs Protocol AT command AT commands for setting protocolsAT commands for setting MSN Multiple subscriber number AT command Chapter Async to Sync PPP Internet and Remote Access PPP and SlipMaking Async to Sync PPP and Slip calls Model XM128 modem modem responds Keeping a Line Connection During Idle Time Answering Async to Sync PPP calls Making a call using Multilink PPPMultilink PPP S85 register values Dialing Pre-stored Phone NumbersEndpoint Discriminator Value Description Call Bumping Dynamic Channel Allocation Page Dialing Out Using Isdn Mode Commands for Outgoing CallsChapter Isdn Overview Manually Switching Communication Modes Dialing Out Using Isdn Mode Optional Speech Bearer ServiceDialing Out for Analog Adapter Port AT Command Dial string it maps to Dialing commandsCall placing commands Placing the Call Commands for Incoming Calls Digital Data Determining the Packet Length Answering a Call Using MSN Commands for assigning Isdn numbers Data over Speech Channel Best-effort Call Answering Command Function Ambiguity Resolution Switch for Voice CallsBest-effort call answering bit commands Multi Auto-Answering of Data Calls Understanding Isdn Communication Protocols Isdn protocol specificationsParameter 110 120 Isdn Communications Configuration commandsAT Command Description Answering a V.110 Call Selecting V.120 for European Isdn DSS1 Switch Selecting V.120 for German National Isdn 1TR6 Answering a V.120 Call Making a V.120 Call Dialing in V.120 Mode Identifying Your Line Provisioning Kbps Speeds Answering an X.75 Call Isdn Communications EuropeMaking an X.75 Call Making a Bundled Call with Dialing Prestored Phone Numbers Bundle Connection with V.42bis Data Compression Page Chapter Advanced Isdn Call Control for DSS1 Register values and functions Control of Outgoing Service IndicatorS108+n= Function Control of Isdn Phone Numbers and Subaddresses Outgoing low-layer compatibility commandsS108.n= Function Reference Guide for the Model XM128 Isdn Digital Modem Call Control for 1TR6 Old German Isdn Command Function Control of EAZ Endgeräteauswahlziffer Answering a Call Answering a Call for DSS1 Answering a Call for 1TR6 Best-effort Call Answering Ambiguity Resolution Switch for Voice Calls Multi-Auto-Answering of Data Calls Disable Inbound Call Connection Data Call Indication Placing a Call Point-to-Point ConfigurationPlacing a Call for DSS1 Placing a Call for 1TR6 User-To-User Information Page Chapter Analog Call Handling Frequently used AT commands European switches AT Commands for Analog CallsFrequently used AT commands AT Command Description of command Making and Receiving Analog Calls Placing a Call from the Analog Adapter Accepting an Incoming Call Definitions for the d modifier Chapter Modem UpgradeUpgrading with Flash Eprom Modifier Definition Upgrade Instructions Kernel Mode Test Sequence Chapter TroubleshootingPower-on Self-test Test Description Isdn Loopback test AT&T9 Loopback TestsLoopback with Self-test AT&T10 Diagnostic Command B1/B2 Loopback with Self-test Modem Reset Using The Embedded Protocol Analyzer Setting up the Embedded EPA Capturing the Protocol Data Analyzing the Captured Data EPA CommandsCommands for analyzing captured data Atct Control key functions Key Function DescriptionPage Network Protocols and Standards Compatibility Appendix a Technical SpecificationsGeneral Specifications Security Environmental Specifications Power AdapterPhysical Specifications Data Compression Appendix B Security Functions Security Types and Levels Table B-1 Types of security Level 1 SecurityLevel 2 Security Type 1 Security Type 2 Security Table B-2 Levels of security Setting and Modifying PasswordsLevel 3 Security Level AT*GC0 Nonpassword Auto Callback FunctionTable B-3 Auto callback commands AT*GC1 Operation Mode of the DTE Interface Appendix C AT Command Set ReferenceSimplex Mode Table C-1 Basic AT command set AT Command DescriptionsCommand Options Function and description CH? CE0CE1 CL? CP1 CP0Dtmf USA Model XM128 modem returns result code SPID1 Description of ATI3 OutputSPID0 SPID? Table C-3 Extended AT& command set Table C-2 ATI3 command outputOutput parameter Output value description Result Codes Knn =phone number Table C-4 lists the extended AT* command set Table C-4 Extended AT* command set Viewing and Setting S-Registers Appendix D Status Registers and Result Codes Setting S-Registers Examples for Setting S-Registers Bit Binary Decimal Hexadecimal Value Table D-2 Setting bitTable D-1 Binary conversion table Operation Example Decimal Hexadecimal Binary Register Descriptions Command Function and description DefaultTable D-3 Basic S-registers ATSn=x Table D-4 Extended S-registers ATSn=x See also S-register ATX1 ATX2 ATX3 ATX4 S24= Bitmapped register S35= Bitmapped register When Data/Voice is pressed Do not send low-layer compatibility Enables loopback 4 test DCA function is enabled Reference Guide for the Model XM128 Isdn Digital Modem Reference Guide for the Model XM128 Isdn Digital Modem Reference Guide for the Model XM128 Isdn Digital Modem Message handling systems MHS Reference Guide for the Model XM128 Isdn Digital Modem Speed is greater than 19200 bps Table D-5 ATXn command setting options ATXn Result Code Option Table Connect Table D-6. Result code chart Result Code Chart Symbol ReferenceSupported Table D-7 Result code field descriptions Result Code Field DescriptionsField name Possible values Connect Strings for Error Corrected Connections Table D-8 Connect stringsPage Appendix E Connector Pin Assignments RJ-45 Plug and Connector Pin Assignment RCV + XMT + RJ-11 Plug and Connector Table E-3. RJ-11 connector pin assignmentsPage RS-232 Serial Interface Signal/pin description Signal direction Signal nameAppendix F Serial Port Interface Table F-1 Serial port interface TXD RXD RTS CTS DSR Asynchronous Cable ConnectionsTable F-2 Asynchronous flow control cable connection CD DCD DTR Appendix G Isdn Reference Isdn Overview Out-of-Band Signaling Basic Rate Interface Terminal Adapter or Digital Modem Isdn Basic Rate Interface Points Ordering Isdn Service Spid Setup Reference Guide for the Model XM128 Isdn Digital Modem Order Form for AT&T 5ESS Switch NI-1 Isdn Table G-1 Isdn line configuration Order Form for DMS-100 Switch NI-1 or Custom Isdn Table G-2 Isdn line configuration Table G-3 Isdn line configuration Order Form for Ewsd NI-1 Isdn Index Numerics Isdn Reference Guide for the Model XM128 Isdn Digital Modem Reference Guide for the Model XM128 Isdn Digital Modem